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Separation of alkane and alkene mixtures by metal–organic frameworks

Journal Article · · Journal of Materials Chemistry. A
DOI:https://doi.org/10.1039/d1ta04096k· OSTI ID:1863574
 [1];  [2];  [3];  [2];  [4]
  1. Shenzhen Polytechnic, Guangdong (China); Rutgers University
  2. Shenzhen Polytechnic, Guangdong (China)
  3. Rutgers Univ., Piscataway, NJ (United States)
  4. Rutgers Univ., Piscataway, NJ (United States); Shenzhen Polytechnic, Guangdong (China)

The separation of alkane/alkene gas mixtures represents an important yet challenging process in the petrochemical industry to produce valuable chemical feedstocks with sufficiently high purity. These molecules have similar physical properties, making their separation difficult and capital-intensive. The current separation and purification technology relies largely on heat-driven distillations with a huge unit composed of hundreds of trays. Adsorptive separation using porous solids is capable of accomplishing the purification under ambient conditions, offering potential energy and environmental benefits. In particular, metal–organic frameworks (MOFs) hold enormous promise for this separation process in light of their highly tunable pore shape, pore size, and pore surface functionality. In this review article, we provide a comprehensive account of metal–organic frameworks that have been investigated for the separation of alkanes and alkenes with a focus on C2–C3 hydrocarbons. Here, the material design rationale, separation mechanisms, and structure–property relations are highlighted. Finally, the existing challenges and possible design strategies for desirable materials are also discussed.

Research Organization:
Wake Forest Univ., Winston-Salem, NC (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0019902
OSTI ID:
1863574
Alternate ID(s):
OSTI ID: 1820201
Journal Information:
Journal of Materials Chemistry. A, Journal Name: Journal of Materials Chemistry. A Journal Issue: 37 Vol. 9; ISSN 2050-7488
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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